Ubuntu
linux package

  1. Bug #1872760
  2. Comment #61

Comment 61 for bug 1872760

Revision history for this message
arno (star-gmx) wrote : Re: i915 - after return from suspend display is flickering

As for me there are 2 ways to get rid of flickering, but both are not make me happy:
Either in grub add:
- GRUB_CMDLINE_LINUX="intel_idle.max_cstate=4"
or (that is new to me)
- change screen resolution(!?!) Anything else than 1920x1080 works! If I can add custom resolutions I would play with that. But only 1600x900 matches my ration.

Maybe this 2nd workaround gives the developers a clue what is the original issue here. Hope to get some feedback. Maybe this is the reason there are not to many that complains about that issue, although nowaday this resolution is standard.

Beside that I have testet a lot of other things, kernel options as
GRUB_CMDLINE_LINUX="i915.enable_psr=0"
or in i915.conf
options i915 enable_guc=2
options i915 fastboot=1